<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="">
      </div>
      <!-- 登录表单区域 -->
      <el-form ref="loginFromRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
          <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima"
          type="password"></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data(){
    return{
      // 这是登录表单的数据绑定对象
      loginForm:{
        username:'admin',
        password:'123456'
      },
      // 这是表单的验证规则对象
      loginFormRules:{
        //验证用户名是否合法
        username:[
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        // 验证密码是否合法
        password:[
           { required: true, message: '请输入登录密码', trigger: 'blur' },
           { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    };
  },
  methods:{
    // 点击重置按钮，重置登录表单
    resetLoginForm(){
        this.$refs.loginFromRef.resetFields()
    },
    login(){
      this.$refs.loginFromRef.validate(async valid => {
        if(!valid) return;
        const { data : res} = await this.$http.post('login',this.loginForm);
        if (res.meta.status !==200) return this.$message.error('登录失败')
        this.$message.success('登录成功');
        console.log(res);
        window.sessionStorage.setItem("token",res.data.token);
        this.$router.push('/home')
      });
    }
  }
};
</script>


<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
//   display: grid;
//   place-items: center;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);

  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%,-50%);
    // margin: -65px auto;
    background-color: white;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
  .login_form{
      position: absolute;
      bottom: 0;
      width: 100%;
      padding: 0 20px;
      box-sizing: border-box;
  }
  .btns{
      display: flex;
      justify-content: flex-end;
  }
}
</style>